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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, July 19, 2024 14:50:18

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
no data
S
no data
G
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Latest Observed
R
no data
S
no data
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
no data
S
no data
G
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Current Space Weather Conditions
on NOAA Scales
R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

G1 (Minor) Storm Watch for Saturday Evening (EDT)

G1 (Minor) Storm Watch for Saturday Evening (EDT)
G1 (Minor) Storm Watch for Saturday Evening (EDT)
published: Thursday, July 18, 2024 19:43 UTC

A G1 (Minor) geomagnetic storm watch is in place for the 21 July UTC-day (beginning Saturday evening - Eastern Time). The G1 Watch has been posted due to the potential arrival at Earth of a pair of weak coronal mass ejections (CMEs). Should the CMEs arrive as anticipated, G1 levels are likely. SWPC watches, warnings, and alerts are based on Coordinated Universal Time (UTC) - a time standard used globally and for convenience without regard to time zones. Continue to monitor our SWPC webpage for the latest information and updates.